Inventor

Etsuo Okaue

Inventor

Suwa, JP

Overview

5→

Patents

1991–2006

Patent span

Physics

Primary field (CPC G)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Tprimary

Y10TTechnical subjects covered by former us classification24%

C03CChemical composition of glasses, glazes or vitreous enamels18%

G02BOptical elements, systems or apparatus18%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein18%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

B41MPrinting, duplicating, marking, or copying processes6%

C09KMaterials for miscellaneous applications, not provided for elsewhere6%

G02CSpectacles6%

PatentTitleYear

7,045,179'Protecting film for protecting image and method for producing recorded material using the same'2006 5,783,299'Polarizer plate with anti-stain layer'1998 5,759,643'Polarizing plate and method of production'1998 5,622,784'Synthetic resin ophthalmic lens having an inorganic coating'1997 5,015,086'Electronic sunglasses'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2006Patents assigned to SEIKO EPSON CORP (5)· patent assignee history

1991–1998Based in Suwa, JP· patent location history

1997–2006Based in Nagano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO EPSON CORP	5	1991–2006

Locations

Location	Patents	Span
Suwa, JP	3	1991–1998
Nagano, JP	2	1997–2006